Further note on the effect on cosmic-ray intensity of the magnetic storm of March 1, 1942

1942 ◽  
Vol 47 (4) ◽  
pp. 331 ◽  
Author(s):  
Isabelle Lange ◽  
Scott E. Forbush
Keyword(s):  
Magnetic Storm ◽  
Cosmic Ray ◽  
Cosmic Ray Intensity

World-wide Effect in Cosmic Ray Intensity, as Observed during a Recent Magnetic Storm

Nature ◽  
1937 ◽  
Vol 140 (3538) ◽  
pp. 316-317 ◽  
Author(s):  
VICTOR F. HESS ◽  
A. DEMMELMAIR
Keyword(s):  
Magnetic Storm ◽  
World Wide ◽  
Cosmic Ray ◽  
Cosmic Ray Intensity

COSMIC-RAY INTENSITY VARIATIONS AT SEA LEVEL DURING MAGNETIC-STORM PERIODS

1958 ◽  
Vol 36 (5) ◽  
pp. 635-637 ◽  
Author(s):  
G. Ramaswamy ◽  
S. D. Chatterjee
Keyword(s):  
Sea Level ◽  
Magnetic Storm ◽  
Cosmic Ray ◽  
Cosmic Ray Intensity

Cosmic ray intensity variations during the magnetic storm in May 1959

1960 ◽  
Vol 18 (S1) ◽  
pp. 136-146 ◽  
Author(s):  
J. R. Manzano ◽  
J. G. Roederer ◽  
O. R. Santochi
Keyword(s):  
Magnetic Storm ◽  
Cosmic Ray ◽  
Cosmic Ray Intensity

Cosmic Ray Intensity Decrease of 23 September, 1966

1971 ◽  
Vol 49 (2) ◽  
pp. 265-269 ◽  
Author(s):  
U. D. Desai
Keyword(s):  
Magnetic Storm ◽  
Forbush Decrease ◽  
Cosmic Ray ◽  
The Sun ◽  
Neutron Monitors ◽  
Magnetic Field Data ◽  
Cosmic Ray Intensity ◽  
Diurnal Anisotropy ◽  
Shadow Cast ◽  
Two Phases

Earlier studies have interpreted the Forbush decrease of 23 September 1966 in terms of two phases; an initial predecrease and a later worldwide decrease. This interpretation precluded the possibility of correlation with a concurrent magnetic storm and led to an explanation of the predecrease (Mathews et al. 1968) in terms of a shadow cast by a distant plasma cloud approaching from a direction 85° to the west of the sun–earth line.In the present study, particle and magnetic field data from satellite-borne detectors and ground-based neutron monitors clearly show the onset of the Forbush decrease coincident with the SSC magnetic storm. It is pointed out that the Forbush decrease arises from a corotating shock front approaching from the east of the sun–earth line and is not associated with any solar flare effect. Further, the increases observed by the various neutron monitors 9 h after the onset of the Forbush decrease are interpreted to be an enhancement of the diurnal anisotropy. An example of an increase in intensity in the IMP 3 detector arising from electron contributions is also pointed out.

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